Color Grading (Hue Saturation and Lightness tuning)
HSL stands for Hue, Saturation & Lightness and it’s one of the main ways to represent RGB color values. You’ll also often see HSB, for Hue, Saturation & Brightness, which is essentially the same thing.
The HSL Tuning control panel contains settings used to adjust the Hue, Saturation, and Lightness of LED strip. HSL tuning can be used to make slight shifts in hue to individual colors, to desaturate specific colors and to brighten or darken those colors.
HSL tuning comes in handy when you’re looking to make focused changes to specific colors within your screen capture. Intensify a sunset, make a blue sky more vivid, make a green hat grey, and get creative.
To access the HSL Tuning control panel go to -> Settings -> Test Image button.
As soon as you access the functionality a test image is shown with the tuning control panel in the center.
You can choose, between six, the three primary colors (Red, Green and Blue) and the three complementary colors (Cyan, Magenta and Yellow), the color to be modified.
All colors have three horizontal sliders to adjust hue, saturation and lightness.
The vertical slider is used to adjust the hue of the selected color, this affects test image only and not the calibration of the RGB strip.
If you click on the Master channel, all colors will be concerned with changes.
The Hue is what we most often think as color. It’s calculated in degrees of the color wheel and it’s refers to a color wheel that goes from red, to yellow, to lime, to cyan, to blue, to magenta, and finally back to red.
Saturation is how pure the hue is. A full saturation means that the pure base hue is used. Saturation is calculated as a percentage value between 0% and 100%. 0% saturation will always be black.
Lightness (or brightness) is the amount of white or black mixed in with the color. It’s also calculated as a percentage value between 0% and 100%. 0% lightness will also always be black.
If you want to further improve the color accuracy, take a look at white temperature and gamma correction here.